Writing Wave Files

Writing Wave files

SpessaSynth has a helper function for writing wave files.

audioBufferToWav

Converts an audio buffer into a fully valid wave file.

const file = audioBufferToWav(audioBuffer, normalizeAudio = true, channelOffset = 0, metadata = {});

• audioBuffer - AudioBuffer - the buffer to write.
• normalizeAudio - optional boolean - if true, the gain of the entire song will be adjusted so the max sample is always 32767 or min is always -32768 (whichever is greater). Recommended.
• channelOffset - optional number - if the buffer has more than 2 channels, you can specify the channel offset to use. This is especially useful in one output mode
• metadata - optional Object described below. All options are string and are optional:
  • title - the song's title
  • artist - the song's artist
  • album - the song's album
  • genre - the song's genre

The metadata uses the INFO chunk to write the information. It is encoded with utf-8.